2228 search results - page 134 / 446 » A System for Semantic Query Optimization |
198
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ICDE
2009
IEEE
15 years 11 months ago
2009
IEEE
We have developed a system to process database queries over composed data providing web services. The queries are transformed into execution plans containing an operator that invok...
100
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ADBIS
2000
Springer
15 years 2 months ago
2000
Springer
Queries involving aggregation are typical in a number of database research areas, such as data warehousing, global information systems and mobile computing. One of the main ideas ...
124
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JODS
2008
14 years 10 months ago
2008
Information integration and retrieval are useful tasks in many information systems. In these systems, it is far from an easy task to directly integrate information from natural lan...
167
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ICDE
2008
IEEE
15 years 11 months ago
2008
IEEE
Data sources on the web are often accessible through web interfaces that present them as relational tables, but require certain attributes to be mandatorily selected, e.g., via a w...
ASWC
2006
Springer
15 years 1 days ago
2006
Springer
Abstract. We propose a conceptual model for semantic search and implement it in security access control. The model provides security access control to extend the search capabilitie...